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txn: make the in-memory pessimistic lock size configurable #17542

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cfzjywxk opened this issue Sep 14, 2024 · 0 comments · Fixed by #17545
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txn: make the in-memory pessimistic lock size configurable #17542

cfzjywxk opened this issue Sep 14, 2024 · 0 comments · Fixed by #17545
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sig/transaction SIG: Transaction type/feature-request Categorizes issue or PR as related to a new feature.

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@cfzjywxk
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Feature Request

Is your feature request related to a problem? Please describe:

The in-memory pessimistic lock size could not be configured currently, and there would be persist pessimistic locks in some hotspot write situations.
image

Describe the feature you'd like:

Make the in-memory pessimistic lock size configurable.

Describe alternatives you've considered:

Use optimistic mode to avoid but it could be used in limited cases.

Teachability, Documentation, Adoption, Migration Strategy:
@cfzjywxk cfzjywxk added sig/transaction SIG: Transaction type/feature-request Categorizes issue or PR as related to a new feature. labels Sep 14, 2024
@cfzjywxk cfzjywxk mentioned this issue Sep 14, 2024
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This was referenced Sep 17, 2024
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@ti-chi-bot ti-chi-bot bot closed this as completed in 5abe1dd Sep 19, 2024
@cfzjywxk cfzjywxk mentioned this issue Sep 19, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Sep 19, 2024
@cfzjywxk
txn: fix the config comment (#17555)
7a8d05a 
ref #17542

Fix the comment of newly added config variable.

Signed-off-by: cfzjywxk <cfzjywxk@gmail.com>
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support change in memory pessimistic lock memory size dynamically cfzjywxk/tikv
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